Lightweight thin plastic foil x-ray telescopes

2002 ◽  
Author(s):  
Herbert W. Schnopper ◽  
Marco Barbera ◽  
Eric H. Silver ◽  
Russell H. Ingram ◽  
Finn E. Christensen ◽  
...  
Keyword(s):  
X Ray ◽  
2007 ◽  
Author(s):  
Marco Barbera ◽  
Teresa Mineo ◽  
Emanuele Perinati ◽  
Herbert W. Schnopper ◽  
Angelo Taibi

1999 ◽  
Author(s):  
Herbert W. Schnopper ◽  
Eric H. Silver ◽  
Russell H. Ingram ◽  
Finn E. Christensen ◽  
Ahsen M. Hussain ◽  
...  
Keyword(s):  
X Ray ◽  
Title X ◽  

Author(s):  
Pier Giorgio Righetti ◽  
Gleb Zilberstein

We describe here a novel tool for exploring documents pertaining to the world Cultural Heritage while avoiding their contamination or damage. Known under the acronym EVA, it consists of a plastic foil of Ethylene Vinyl Acetate studded with strong cation and anion resins admixed with C8 and C18 hydrophobic beads. When applied to any surface such foils can harvest any type of surface material, which is then eluted and analysed via standard means, such as GS/MS (typically for metabolites), MS/MS (for peptide and protein analysis), X-ray (for elemental analysis). We briefly review here a number of past data, such as screening of original documents by Bulgakov, Chekov, Casanova, Kepler, while dealing in extenso with very recent data, pertaining to Orwell and Stalin and analysis of the skin of an Egyptian mummy. The technique was also successfully applied to paintings, such as the Donna Nuda at the Hermitage in St. Petersburg, attributed to Leonardo and his school. This novel methodology represents a formidable tool for exploring the past life of famous authors, scientist and literates in that it can detect traces of their pathologies and even drug consumption left by saliva and sweat traces on their original hand-written documents.


2003 ◽  
Author(s):  
Herbert W. Schnopper ◽  
Marco Barbera ◽  
Eric H. Silver ◽  
Russell H. Ingram ◽  
Finn E. Christensen ◽  
...  
Keyword(s):  
X Ray ◽  

1990 ◽  
Vol 123 ◽  
pp. 457-461
Author(s):  
A.N. Parmar ◽  
A. Smith ◽  
M. Bavdaz

AbstractThe payload of the italian/Dutch satellite SAX will include a set of four concentrators each with a geometric area of 90 cm2. Imaging GSPCs will be located at the focal planes of the concetrators. The Space Science Department of ESA will provide one of these GSPCs which will be sensitive to X-rays with energies between 0.1-10 keV. In order to achieve such a low-energy energy response, a driftless configuration and a thin plastic window have been adopted. At 6 keV the collecting area will be 50 cm2 and the energy and angular resolutions 8% and 1.6′ FWHM, respectively.


1990 ◽  
Vol 34 ◽  
pp. 41-55 ◽  
Author(s):  
Carl Meltzer ◽  
Bi-Shia King

We have developed a technique to determine the dissolved solid components of water and other liquids by Energy- Dispersive X-Ray Fluorescence (EDXRF) spectrometry. The liquid samples are presented to the spectrometer as small dried spots of the residue remaining after evaporation of the liquid. The dried residues are mounted on thin plastic films cemented to 35 mm plastic slide mounts. Elements from sodium through uranium are detected with detection limits less than one nanogram in favorable cases. Precision of the measurement is better than 2 % relative in favorable cases for secondary-target excitation, and is typically 5 to 10 % for direct excitation given the geometry of the instrument. Detection limits are as low as a part per billion relative to the original liquid for solutions whose total dissolved solid content is 1000 part per million or less.


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